(19)
(11) EP 0 925 926 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.01.2000 Bulletin 2000/02

(43) Date of publication A2:
30.06.1999 Bulletin 1999/26

(21) Application number: 98310635.2

(22) Date of filing: 23.12.1998
(51) International Patent Classification (IPC)7: B41J 2/05
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 24.12.1997 JP 35580197

(71) Applicant: Canon Aptex Kabushiki Kaisha
Mitsukaido-shi Ibaraki-ken (JP)

(72) Inventors:
  • Katayama, Akira
    Mitsukaido-shi, Ibaraki (JP)
  • Niida, Seiji
    Mitsukaido-Shi Ibaraki (JP)

(74) Representative: Beresford, Keith Denis Lewis et al
BERESFORD & Co. High Holborn 2-5 Warwick Court
London WC1R 5DJ
London WC1R 5DJ (GB)

   


(54) Printing apparatus and control method therefor


(57) The main controller of an ink-jet printer sets a read address in a driver controller to read out image data from an image memory which stores image data to be printed, in units of print lines. The driver controller reads out image data of one line from the image memory in accordance with the set address to print the image of one line, and conveys printing paper in synchronism with this printing. The main controller controls setting of the read address in the driver controller to execute magnification processing in the direction of conveyance on the basis of a set correction amount. When appropriate magnification processing is performed for print image data, any mechanical error of the conveyor mechanism is absorbed.






Search report